Delaware’s water, both ground and surface, is one of its most important natural resources. It is essential for meeting the needs of all segments of our society and for maintaining economic growth and agriculture. At this time, all water used for public and domestic supply and more than 98% of water used for irrigation south of the Chesapeake and Delaware Canal is groundwater. North of the canal, approximately 70% of public water supplies are obtained from four surface-water sources (creeks) and 30% from groundwater resources.
Because of the importance of groundwater to the State, hydrogeologic programs and studies are a major focus of DGS staff. Recent and ongoing efforts include such subjects as ambient and targeted groundwater level and quality monitoring, mapping of aquifer extents and hydraulic properties, assessing the impacts of artificial drainage and wastewater disposal practices, developing methods for remote sensing of groundwater discharge areas, and development of techniques for storage, analysis, and distribution of groundwater information by geographic information systems.
The DGS is the lead agency for collection and analysis of data on groundwater levels and stream discharges in Delaware. The importance of water conditions monitoring has been highlighted in the last several years by a series of droughts and floods. We operate and monitor a variety of systems that provide water-conditions data and capture these data